Table 2

Mutation frequency to rifampicin resistance in three strain pairs with an intact and insertion-inactivated mutS gene, respectively

StrainMutation frequency
wtmutS∷kanRRatio mutS∷KanR/wt
266951.3  × 10−61.3  × 10−61.0
G746  × 10−75  × 10−70.9
G774  × 10−813  × 10−83.2